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相关概念视频

Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

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An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
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相关实验视频

Updated: Sep 12, 2025

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

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激光功率稳定使用保护定律在声光学调制器的光学调制器.

Erwei Li1,2, Qianjin Ma1, Weiyu Wang1,2

  • 1National Time Service Center, Chinese Academy of Sciences, Xi'an, 710600, Shaanxi, China.

Scientific reports
|August 10, 2025
PubMed
概括

本研究介绍了一种使用声光调制器 (AOM) 的新激光功率稳定技术. 该方法显著降低了激光功率噪声,提高了原子钟和干扰仪等应用的精度.

关键词:
声波光学调制器的声音光学调制器.保护法的保护法.激光功率稳定器 激光功率稳定器

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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

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Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
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Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

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相关实验视频

Last Updated: Sep 12, 2025

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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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科学领域:

  • 物理 物理学 物理
  • 光学是什么?光学是什么?光学是什么?
  • 精密工程 精密工程是指精密的工程.

背景情况:

  • 激光功率稳定对于依赖原子-激光相互作用的精密仪器至关重要.
  • 现有的激光功率稳定方法可能是复杂或低效的.

研究的目的:

  • 展示激光功率稳定的一个替代性主动控制方法.
  • 为了提高精密仪器应用的激光功率的稳定性.

主要方法:

  • 在声光调制器 (AOM) 中利用保存定律.
  • 动态调整一级光束功率以抵消总功率波动.
  • 稳定零级光束作为差值项.

主要成果:

  • 控制光束的相对功率噪声减少了200的系数.
  • 在 [公式:见文本] Hz 达到[公式:见文本] 的相对功率噪声.
  • 3.28的相对功率不稳定性在500秒的平均时间 (艾伦偏差).

结论:

  • 基于AOM的方法提供了有效的激光功率稳定.
  • 这种技术提供了总功率源的高可用性.
  • 该方法非常适用于原子钟,激光干扰仪和陀螺仪.